RawFsFile.h

/*
 * Copyright (c) 2008-2014, Pedigree Developers
 *
 * Please see the CONTRIB file in the root of the source tree for a full
 * list of contributors.
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */
 
#ifndef RAWFS_FILE_H
#define RAWFS_FILE_H
 
#include "pedigree/kernel/process/Mutex.h"
#include "pedigree/kernel/processor/types.h"
#include "pedigree/kernel/utilities/Cache.h"
#include "pedigree/kernel/utilities/String.h"
 
#include "modules/system/vfs/File.h"
 
class Disk;
 
class RawFsFile : public File {
 private:
  RawFsFile(const RawFsFile& file);
  RawFsFile& operator=(const RawFsFile&);
 
 public:
  RawFsFile(String name, class RawFs* pFs, File* pParent, Disk* pDisk);
  ~RawFsFile();
  virtual bool sync();
  virtual bool sync(size_t offset, bool async);
  bool shutdown();
 
  virtual uintptr_t readBlock(uint64_t location);
  virtual void writeBlock(uint64_t location, uintptr_t address);
  virtual bool pinBlock(uint64_t location);
  virtual void unpinBlock(uint64_t location);
 
  virtual size_t getBlockSize() const;
 
  virtual void fileAttributeChanged() {}
 
 private:
  static bool cacheCallback(CacheConstants::CallbackCause cause, uintptr_t location, uintptr_t page,
                            void* context);
  Disk* m_pDisk;
  Cache m_PageCache;
  Mutex m_PageCacheLock;
};
 
#endif